/* 
 * Copyright (c) 2012 JSquirrelEngine
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in 
 * the Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
 * Software, and to permit persons to whom the Software is furnished to do so, subject
 * to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */

package org.jsquirrel.rendering.LWJGLimpl;

import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.AWTGLCanvas;

public class LWJGL_Canvas extends AWTGLCanvas {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	//*********************************************************************************************
	// INSTANCE ATTRIBUTES
	//*********************************************************************************************
	
	private LWJGL_RenderingContext context;
	
	private boolean isValid;
	
	
	//*********************************************************************************************
	// CONSTRUCTOR
	//*********************************************************************************************
	
	public LWJGL_Canvas(LWJGL_RenderingContext context) throws LWJGLException {
		super();
		
		if(context == null) {
			super.destroy();
			throw new NullPointerException("LWJGL_Canvas.LWJGL_Canvas(LWJGL_RenderingContext): null rendering context");
		}
		
		this.context = context;
		isValid = false;
	}
	
	
	//*********************************************************************************************
	// PROTECTED METHODS
	//*********************************************************************************************
	
	@Override
	protected void exceptionOccurred(LWJGLException exception) {
		
		isValid = false;
	}
	
	@Override
	protected void initGL() {
		
		isValid = true;
		context.init();
	}

	@Override
	protected void paintGL() {
		
		if(isValid) {
			context.render();
		}
	}
}
